General intelligence tests, often referred to as IQ (Intelligence Quotient) tests, have a rich history and are designed to measure a person's cognitive abilities in various areas. Here are some interesting and fun facts about general intelligence tests: IQ Formula: The IQ score is derived from a formula that compares a person's mental age to their chronological age. A score of 100 represents average intelligence, and scores above or below indicate deviation from the average. Stanford-Binet Test: